Ketsuekigata-kun (A Simple Thinking About Blood Type in English) is an anime about four friends, each of whom is a different blood type. So there is Type A, Type B, Type AB and Type O. Or A型さん, B型さん, AB型さん and O型さん.
New Year’s shrine visit — the boys
Then, in the second season if I recall correctly, their four female counterparts were added. Or A型ちゃん, B型ちゃん, AB型ちゃん and O型ちゃん.
Valentine’s Day planning — the girls
The idea behind the anime comes from the common belief (common in Japan and Korea, at least) that a person’s personality, temperament, and compatibility with others is given by their blood type. Which is why Japanese and Korean celebrities’, seiyuu’s or characters’ biographical sketches usually include information about their blood type. In effect, this series’ characters act according to their blood types and it creates a pretty good dynamic. (If you’re interested, Korean Wiki Project has a nice chart with the types’ personalities, temperaments and compatibilities.)
The anime itself originates from a Korean yonkoma (I swear I will write that yonkoma article.) by art teacher Park Dong-sun. Every episode follows one skit, so circa one yonkoma. The episodes are only two minutes long (including the ending), so the four seasons now available will only take 96 minutes to watch.
My opinion? I suppose the anime is a pretty nice way to fill your three-episodes-per-day quota…to be serious, I would probably relate to it better if I were Korean or Japanese. Without the background it’s just a group of friends acting differently in different situations. When the lights go out, at a mixer, among their own blood types (close families for example), et cetera.
I’m type B by the way.
Let me know what blood type you are and if you have watched this, please.